Update assignment mentions for Cosmos (Azure#20024)

RickWinter · web-flow · commit 8aa96821d5df · 2023-03-09T14:57:23.000-08:00
diff --git a/.github/fabricbot.json b/.github/fabricbot.json
@@ -1776,8 +1776,8 @@
               "Cosmos"
             ],
             "mentionees": [
-              "pjohari-ms",
-              "MehaKaushik"
+              "markjbrown",
+              "carjackson-msft"
             ]
           },
           {
